132 Report of the National Vaccine Establishment. 
alluded to: it had a fetid smell, and was so thick that we- 
could not see a fire twenty-five paces off: fortunately for us, 
a violent east wind, which arose about nine o’clock in the 
evening, speedily cleared the atmosphere of these malig- 
nant vapours, which, if they are not mortal, at least occa~ 
sion long and obstinate fevers. 
On the 21st early in the morning we set out on foot to 
visit the voleano: the road which Jeads to it is extremely. 
steep, and fatiguing on accountof a very fine grass, which 
covers the soi], and renders it very slippery; and in order to 
make any progress it is necessary at every step’ to lay hold. 
of the shrubs which we meet with. ‘The Casuarina equi- 
setifolia, which the Javanese call Semara, is almost the only 
Jarge tree which is seen on this side of the mountain: the 
wind rusting through its long filiform leaves produces a 
continual and sharp hissing noise; this tree is straight and 
tapering: it has the appearance of the fir-tree, but its heavy 
and brittle wood does not admit of its being applied to the 
same use*, 
After two hours walking, we arrived at the summit of 
the crater. Before reaching this height we had already 
met with here and there a great quantity of sulphur in 
dirty greenish Jumps like score: they scem to have been 
thrown out of the volcano during some eruption. 
[To be continued.] 
XXII. Report of the National Vaccine Establishment. | 
Dated 29d sipril, 1813. 
[Continued from p. 34. ] 
To the Right Hon. Lord Viscount Sidmouth. 
Leicester Square, May £4, 1813. 
Mr Don be- bak Board of the National Vaccine Esta-. 
blishment have received the enclosed papers since they had 
the honour of communicating to your Lordship their Re- 
port of the state of vaccination during the year 1812: and 
they take the liberty of recommending, that, when they 
shall have beer submitted to the Honourable the House of 
Commons, they should be printed, and subjoined as a se- 
cond Appendix to their Report now, by the order of the 
House, in the press. These papers contain a valuable testi- 
mony of the rapid progress which, in one of our Eastern 
* These trees when transplanted into the plain have no longer the same 
appearance: they are shorter than those which grow on the mountains, and 
their tops are more loaded with branches. 
Governments, 
